“The sexual division of labor refers to women and men making different and complementary contributions to the household economy. Though the specific activities of each sex vary by culture, the gendered division of labor is a human universal. It is therefore assumed to have appeared well before modern humans started spreading across the globe sixty thousand to seventy thousand years ago.” MenSexDifferencesHistoryEvolutionFemaleGenderRole Book:Catching Fire: How Cooking Made Us Human Source: Catching Fire: How Cooking Made Us Human